CN220469876U - Horizontal well site draws oily production system - Google Patents
Horizontal well site draws oily production system Download PDFInfo
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- CN220469876U CN220469876U CN202322351491.1U CN202322351491U CN220469876U CN 220469876 U CN220469876 U CN 220469876U CN 202322351491 U CN202322351491 U CN 202322351491U CN 220469876 U CN220469876 U CN 220469876U
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- well
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- metering
- oil
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 23
- 239000007788 liquid Substances 0.000 claims abstract description 56
- 238000003860 storage Methods 0.000 claims abstract description 53
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 36
- 238000000926 separation method Methods 0.000 claims abstract description 18
- 239000010865 sewage Substances 0.000 claims abstract description 5
- 239000003814 drug Substances 0.000 claims abstract description 3
- 238000010438 heat treatment Methods 0.000 claims description 31
- 238000011068 loading method Methods 0.000 claims description 10
- 238000011084 recovery Methods 0.000 claims description 7
- 238000010992 reflux Methods 0.000 claims description 6
- 239000003921 oil Substances 0.000 abstract description 42
- 239000010779 crude oil Substances 0.000 abstract description 15
- 238000000034 method Methods 0.000 abstract description 4
- 238000002347 injection Methods 0.000 abstract description 3
- 239000007924 injection Substances 0.000 abstract description 3
- 239000003079 shale oil Substances 0.000 description 10
- 238000011161 development Methods 0.000 description 7
- 238000005259 measurement Methods 0.000 description 6
- 230000018044 dehydration Effects 0.000 description 5
- 238000006297 dehydration reaction Methods 0.000 description 5
- 238000007872 degassing Methods 0.000 description 2
- 239000003129 oil well Substances 0.000 description 2
- 239000013049 sediment Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000000241 respiratory effect Effects 0.000 description 1
- 239000002455 scale inhibitor Substances 0.000 description 1
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- Loading And Unloading Of Fuel Tanks Or Ships (AREA)
Abstract
The utility model relates to a horizontal well site oil drawing production system, which comprises a valve bank sled, a metering device and a separation device which are sequentially connected in series, wherein the valve bank sled is connected to a single well incoming liquid, and the outlet end of the separation device is respectively connected with a water treatment system, an oil treatment system and an air treatment system; the valve bank sled comprises a single-well liquid coming valve bank, a dosing device, a collecting pipe and a single-well metering pipeline; the number of single-well liquid inlet valves in the Shan Jinglai liquid valve group is consistent with that of single wells; one end of the inlet end of the collecting pipe is connected to each single well liquid inlet through each single well liquid inlet valve, and the other end of the inlet end of the collecting pipe is connected to the medicine adding device; the inlet end of the single-well metering pipeline is connected to each single-well liquid inlet through each single-well liquid inlet valve; one end of the inlet end of the metering device is connected to the outlet end of the collecting pipe, and the other end of the inlet end of the metering device is connected to the outlet end of the single-well metering pipeline; the outlet end of the single well metering line is connected to the separation device. The method realizes well site crude oil metering, storage and transportation, outward transportation, low-water-content crude oil pulling to a joint station, and sewage pulling to a nearby water injection station for treatment and reinjection into a stratum.
Description
Technical Field
The utility model relates to the technical field of shale oil development, in particular to a horizontal well site oil drawing production system.
Background
In recent years, the development of shale oil in China rapidly develops, the exploration area of the shale oil in the Hundos basin is 1.2 ten thousand square kilometers, the long-term celebration oil field is built into a million-ton national demonstration base in the Long east, the industrial shale oil flow is obtained by the prolonged oil field in a plurality of exploratory wells in the Shaanxi slope, and the development of the shale oil is accelerated at present. Shale oil development is mainly carried out in a horizontal well volume fracturing mode, a plurality of horizontal wells are usually deployed in a well site for development, more shale oil well groups can reach more than 20, and the shale oil well groups are called horizontal well large well group development. The large well group production of the horizontal well is characterized in that the number of oil wells in a single well site is large, the initial yield of crude oil production is high, the later yield reduction is fast, the associated gas content is high, a gathering and transportation system is not built at all in a part of shale oil horizontal well development area, a supportable centralized processing station is not available, and the produced liquid can only be temporarily processed and stored in the well site and then is pulled to a joint station outside 30km by a car.
The utility model relates to an integrated device for treating crude oil at a well site (CN 114439456A), which is an integrated skid-mounted device for treating crude oil at a well site, integrates a buffer tank and an electric heater into one device, and has the functions of oil-gas separation, storage, heating, loading, metering and the like. The device is suitable for stable liquid production, the metering function is suitable for single well metering of only one oil well in a well site, and is not suitable for single well metering of multiple wells. Meanwhile, the device does not have a crude oil dehydration function, cannot realize dehydration of produced liquid at a well site, cannot meet the requirement of on-site dehydration and nearby transportation of produced water to a nearby water injection station.
The utility model discloses a temporary crude oil storage device (CN 218967793U) for a well site, which is also used for a crude oil production well site device, but the device only comprises a storage tank for storing crude oil, and mainly is used for storing larger produced liquid containing sediment and other magazines in the drilling process, and the device does not comprise the functions of single well metering, crude oil degassing, dehydration and the like and cannot meet the requirement of crude oil gathering and transportation production of a horizontal well site.
Disclosure of Invention
The utility model aims at a ground production device developed by a large well group of shale oil horizontal wells, which is used for the production flow of the large well group during normal production of pulling and transporting in a well site, and realizes the functions of single well metering, dosing, dehydration, degassing, crude oil storage and loading and transporting outside of the large well group of the horizontal wells in the well site.
The technical scheme of the utility model is as follows:
the system comprises a valve bank sled, a metering device and a separation device which are sequentially connected in series, wherein the valve bank sled is connected to a single well incoming liquid, and the outlet end of the separation device is respectively connected with a water treatment system, an oil treatment system and an air treatment system; the valve bank sled comprises a single-well liquid coming valve bank, a dosing device, a collecting pipe and a single-well metering pipeline; the number of single-well liquid inlet valves in the Shan Jinglai liquid valve group is consistent with that of single wells; one end of the inlet end of the collecting pipe is connected to each single well liquid inlet through each single well liquid inlet valve, and the other end of the inlet end of the collecting pipe is connected to the medicine adding device; the inlet end of the single-well metering pipeline is connected to each single-well liquid inlet through each single-well liquid inlet valve; one end of the inlet end of the metering device is connected to the outlet end of the collecting pipe, and the other end of the inlet end of the metering device is connected to the outlet end of the single-well metering pipeline; the outlet end of the single well metering line is connected to the separation device.
The water treatment system comprises a water storage tank and a first loading pump which are connected in sequence through a water treatment pipeline; the water storage tank is connected to the separating device.
The water storage tank is provided with an oil collecting tank which is connected to an external sewage disposal tank.
The oil treatment system comprises an oil storage tank and a second loading pump which are sequentially connected through an oil treatment pipeline; the oil storage tank is connected to the separation device; and a breather valve is also arranged on the oil storage tank.
The bottom of the oil storage tank is provided with an oil storage tank liquid inlet pipeline, and the part of the oil storage tank liquid inlet pipeline entering the oil storage tank extends from low to high along the inner side wall of the oil storage tank and bends downwards.
And a heating coil is also arranged in the oil storage tank.
The metering device is a three-phase metering device, and the separating device is a horizontal cylindrical three-phase separator.
The gas treatment system comprises an LPG recovery skid which is sequentially connected through a gas treatment pipeline; the heating system comprises a heating furnace and a heating medium water outlet pipeline, wherein the inlet end of the heating furnace is connected to a dry gas outlet of the LPG recovery sled, and the outlet end of the heating medium water outlet pipeline is respectively connected to an oil storage tank and a heating coil in the three-phase separator;
the three-phase separator also comprises a reflux pipeline, wherein the inlet end of the reflux pipeline is connected to the oil storage tank and the heating coil in the three-phase separator, and the outlet end of the reflux pipeline is connected to the heating furnace.
The single-well liquid inlet valve comprises a control valve and a pressure control valve which are arranged in parallel, wherein the inlet ends of the control valve and the pressure control valve are connected to the single-well liquid inlet, the outlet end of the control valve is connected to the inlet end of a single-well metering pipeline, and the outlet end of the pressure control valve is connected to the inlet end of a collecting pipe.
The utility model has the technical effects that:
the utility model realizes well site crude oil metering, storage and transportation, outward transportation, low water content crude oil hauling to a joint station, sewage hauling to a nearby water injection station for treatment and reinjection into a stratum.
Drawings
FIG. 1 is a schematic diagram of a horizontal well wellsite oil production system according to the present utility model.
Reference numerals: 1. a valve bank pry; 2. a header; 3. a single well metering line; 4. a dosing device; 5. a three-phase metering device; 6. a three-phase separator; 7. LPG recovery skid; 8. a heating furnace; 9. an oil storage tank; 10. a respiratory valve; 11. a second loading pump; 12. a water storage tank; 13. a first loading pump; 14. a pressure control valve; 15. a control valve; 16. and a liquid inlet pipeline of the oil storage tank.
Detailed Description
Example 1
The system comprises a valve bank sled 1, a metering device and a separation device which are sequentially connected in series, wherein the valve bank sled 1 is connected to single well incoming liquid, and the outlet end of the separation device is respectively connected with a water treatment system, an oil treatment system and a gas treatment system; the valve bank sled 1 comprises a single-well liquid coming valve bank, a dosing device 4, a collecting pipe 2 and a single-well metering pipeline 3; the number of single-well liquid inlet valves in the Shan Jinglai liquid valve group is consistent with that of single wells; one end of the inlet end of the collecting pipe 2 is connected to each single well liquid inlet through each single well liquid inlet valve, and the other end is connected to the chemical adding device 4; the inlet end of the single-well metering pipeline 3 is connected to each single-well liquid supply through each single-well liquid supply valve; the inlet end of the metering device is connected with one end of the outlet end of the collecting pipe 2, and one end of the metering device is connected with the outlet end of the single-well metering pipeline 3; the outlet end of the single well metering line 3 is connected to a separation device.
The specific implementation process of the embodiment is as follows:
each incoming liquid enters a single well metering pipeline 3 or a collecting pipe 2;
during the measurement period, each single well sequentially enters the single well measurement pipeline 3 according to the measurement period to realize the alternate measurement of each single well, and is not communicated with the collecting pipe 2, and only one Shan Jinglai liquid enters the measurement device during the measurement, and other single wells are not used for measuring the incoming liquid. No dosing during the dosing period;
during the non-metering period, each incoming liquid enters the collecting pipe 2; meanwhile, the chemical adding device 4 adds demulsifier and scale inhibitor to the collecting pipe 2;
the metering device respectively meters the liquid outlet amount and the gas amount; measuring the water content by using an online water meter to obtain the liquid input quantity, the water input quantity and the gas input quantity of the single well liquid input;
and then the oil, gas and water are subjected to primary separation through a three-phase separator 6, and enter a subsequent treatment system for separate treatment.
Example 2
On the basis of the embodiment 1, the method further comprises the following steps:
the water treatment system comprises a water storage tank 12 and a first loading pump 13 which are connected in sequence through a water treatment pipeline; the water storage tank 12 is connected to a separation device. The water storage tank 12 is provided with an oil collecting tank which is connected to an external sewage disposal tank.
Example 3
On the basis of embodiment 2, further comprising:
the oil treatment system comprises an oil storage tank 9 and a second loading pump 11 which are sequentially connected through an oil treatment pipeline; the oil storage tank 9 is connected to the separation device; a breather valve 10 is also arranged on the oil storage tank 9; the bottom end of the oil storage tank 9 is provided with an oil storage tank liquid inlet pipeline 16, and the part of the oil storage tank liquid inlet pipeline 16 entering the oil storage tank 9 extends from low to high along the inner side wall of the oil storage tank 9 and then bends downwards, so that sediment deposition at the bottom of the oil storage tank 9 is prevented from blocking an oil inlet; a hot water heating pipeline is also arranged in the oil storage tank 9, so that the problem that crude oil in the tank is solidified in winter and cannot be sent out is solved.
Example 4
On the basis of embodiment 3, further comprising:
a heating coil is also arranged in the oil storage tank 9;
the metering device is a three-phase metering device 5, and the separating device is a horizontal cylindrical three-phase separator 6;
the gas treatment system comprises an LPG recovery skid 7 which is sequentially connected through a gas treatment pipeline; the system also comprises a heating system, wherein the heating system comprises a heating furnace 8 and a heating medium water outlet pipeline, the inlet end of the heating furnace 8 is connected to a dry gas outlet of the LPG recovery sled 7, and the outlet end of the heating medium water outlet pipeline is respectively connected to an oil storage tank 9 and a heating coil in the three-phase separator 6;
and also comprises a return line, the inlet end of the return line is connected to the oil storage tank 9 and the heating coil in the three-phase separator 6, and the outlet end of the return line is connected to the heating furnace 8.
Example 5
On the basis of embodiment 4, further comprising:
the single-well liquid inlet valve comprises a control valve 15 and a pressure control valve 14 which are arranged in parallel, wherein the inlet ends of the control valve 15 and the pressure control valve 14 are connected to the single-well liquid inlet, the outlet end of the control valve 15 is connected to the inlet end of the single-well metering pipeline 3, and the outlet end of the pressure control valve 14 is connected to the inlet end of the collecting pipe 2. The outlet end of the header 2 is also connected to a connecting line between the three-phase metering device 5 and the three-phase separator 6 for backup maintenance.
Claims (10)
1. The utility model provides a horizontal well site draws oily production system which characterized in that: the device comprises a valve bank sled (1), a metering device and a separation device which are sequentially connected in series, wherein the valve bank sled (1) is connected to a single well for liquid supply, and the outlet end of the separation device is respectively connected with a water treatment system, an oil treatment system and a gas treatment system; the valve bank sled (1) comprises a single-well liquid inlet valve bank, a dosing device (4), a collecting pipe (2) and a single-well metering pipeline (3); the number of single-well liquid inlet valves in the Shan Jinglai liquid valve group is consistent with that of single wells; one end of the inlet end of the collecting pipe (2) is connected to each single well liquid inlet through each single well liquid inlet valve, and the other end is connected to the medicine adding device (4); the inlet end of the single-well metering pipeline (3) is connected to each single-well liquid supply through each single-well liquid supply valve; one end of the inlet end of the metering device is connected to the outlet end of the collecting pipe (2), and the other end of the metering device is connected to the outlet end of the single well metering pipeline (3); the outlet end of the single well metering line (3) is connected to a separation device.
2. The horizontal well site pull oil production system of claim 1, wherein: the water treatment system comprises a water storage tank (12) and a first loading pump (13) which are connected in sequence through a water treatment pipeline; the water storage tank (12) is connected to the separation device.
3. The horizontal well site pull oil production system of claim 2, wherein: the water storage tank (12) is provided with an oil collecting groove which is connected to an external sewage disposal tank.
4. A horizontal well site pull oil production system according to claim 3, wherein: the oil treatment system comprises an oil storage tank (9) and a second loading pump (11) which are sequentially connected through an oil treatment pipeline; the oil storage tank (9) is connected to the separating device; and a breather valve (10) is further arranged on the oil storage tank (9).
5. The horizontal well site pull oil production system of claim 4, wherein: the bottom of the oil storage tank (9) is provided with an oil storage tank liquid inlet pipeline (16), and the part of the oil storage tank liquid inlet pipeline (16) entering the oil storage tank (9) extends from low to high along the inner side wall of the oil storage tank (9) and bends downwards.
6. The horizontal well site pull oil production system of claim 5, wherein: and a heating coil is also arranged in the oil storage tank (9).
7. The horizontal well site pull oil production system of claim 6, wherein: the metering device is a three-phase metering device (5), and the separating device is a horizontal cylindrical three-phase separator (6).
8. The horizontal well site pull oil production system of claim 7, wherein: the gas treatment system comprises an LPG recovery skid (7) which is sequentially connected through a gas treatment pipeline; the heating system comprises a heating furnace (8) and a heating medium water outlet pipeline, wherein the inlet end of the heating furnace (8) is connected to a dry gas outlet of the LPG recovery sled (7), and the outlet end of the heating medium water outlet pipeline is respectively connected to an oil storage tank (9) and a heating coil in the three-phase separator (6).
9. The horizontal well site pull oil production system of claim 8, wherein: the three-phase separator also comprises a reflux pipeline, wherein the inlet end of the reflux pipeline is connected to the oil storage tank (9) and the heating coil in the three-phase separator (6), and the outlet end of the reflux pipeline is connected to the heating furnace (8).
10. The horizontal well site pull oil production system of claim 9, wherein: the single-well liquid inlet valve comprises a control valve (15) and a pressure control valve (14) which are arranged in parallel, wherein the inlet ends of the control valve (15) and the pressure control valve (14) are connected to the single-well liquid inlet, the outlet end of the control valve (15) is connected to the inlet end of the single-well metering pipeline (3), and the outlet end of the pressure control valve (14) is connected to the inlet end of the collecting pipe (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322351491.1U CN220469876U (en) | 2023-08-31 | 2023-08-31 | Horizontal well site draws oily production system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322351491.1U CN220469876U (en) | 2023-08-31 | 2023-08-31 | Horizontal well site draws oily production system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220469876U true CN220469876U (en) | 2024-02-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322351491.1U Active CN220469876U (en) | 2023-08-31 | 2023-08-31 | Horizontal well site draws oily production system |
Country Status (1)
| Country | Link |
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| CN (1) | CN220469876U (en) |
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2023
- 2023-08-31 CN CN202322351491.1U patent/CN220469876U/en active Active
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